CatKid is super excited to meet Kristie, the new girl in school. CatKid's best friend Maddie has been chosen to show the new girl around — and best friends share everything, right? WRONG! CatKid thinks the new girl is trying to steal Maddie away so she tries to find an even better best friend. When the new girl has a birthday party, CatKid can't wait to go so she can show off her new best friend in front of Maddie! But when the plan backfires, can CatKid and Maddie become best friends again? It'll take one cool cat to prove that friendship is forever.